Envelop.



E. KOHLER.

ENVELOP. APPLICATION nun 11133.3, 190s.

Patnted- Oct. 6, 1908.

UNITED A ERNEST. KOHLER, or ALAMEDA, CALIFORNIA.

i Specification To all whom it may concern: v Be it known that I, ERNEST KoHLER,citizen of the Unitedstatespresiding' at Alameda, in the county of Alameda and California, have invented ew and useful Improvements in Envelops ofwhich the which will absolutely prevent the openingof the envelop,

detection, or

or wrapper.

The invention consists wrapper or package, without of the parts andxthe construction and combination of parts ashereinafter more fully described and claimed,

having reference to the ings, in which Y r a Figure 1 is a plan view of an envelopblank opened out ready foruse. modification 0f the same.

larged view in member. same. Fig. male looking member. tionof the same. i

ing the envelop with permanently attached Fig. 611s a cross-sec the locking members thereto.

able side flaps 2-3, and end flaps 4'-5. k 35. Two of the opposed flaps, such wwprovided with tongues or tangs 6 -7 which may be stamped from the edge the paper,

as in Fig. 1; or they may be cut outof the paper, as shown in A and. protecting them. The other two" opposed flaps, as 23, are provided with respective tongues ortangs 9-:10; thetongue the tongue of Letters Patent. Application fiieaA rii's, 190s. Seria1 No.424,880.

State of without destroying the envelop:

accompanying draw-.

I Fig1f2'is a Fig.3 is an'fen perspective of a male looking Fig.4 is a cross-section of the 5 is an enlarged view of the ,fe-f

Fig; '7 is'a plan view showr Fig. 8 is a' cross-section showing the boxes interlocked.

A represents anenvelop having the fold-v t style, shapeor size 0 as 4 5, are

, i Fig. 2, leavingla portion 8. 40 of the body of the envelop-blank inelosin'g' 10 being in the form of a cross," andif desired fl 9 may be inclosed, as 'shownjin Fig. 2, by the surroundingborder of stock 1"1.

ed from sheet-metal, y projecting angular ementarysp'ringmem Patented Oct. 6, 1908.

*bers c of the box 0, when the two parts B-C .are made to telescope one within the other. Both of theselocking devices BC are made of metal, and both are generally separate vfrorcrli 1 the envelop with which they are to be use 1 When it is desired to seal up the envelop,

one of the boxes, as C, is laid with its opening upward, on top of the contents and centrally o'the envelop, and the flaps 2,4-5 folded over so thatthe tonguesor tangs 679 overlie box 0. These tongues 679 are then ushed down into the box 0. 7 Box Bis then aid with its closed end down upon the cruciformtongue member10, and the three divisions of this tongue 10 are pushed into the opening inthe box. With the edges of 1 the cross thus turned in, the flap 3'is folded [over and thebox B pushed downward so as to interlock with the box 0. The interlock- 1n g edges of the twoboxes being thus covered with paper, 'and the paper being caught in the interlocking members, provide a simple means for sealing the envelo I Since allportions of the fastening membersB.C are covered with paper no part of the metal is visible, nor exposed to a file or like instrument. The only way the envelop can'be'opened,is to destroy it. By the term fenve'lop? herein, I mean a wrapper or any equivalent device used as a container or in- "closure, towhich the invention is applicable. Theinventionis a plicable, also, to any f envelop. It 1s obvious that the boxes B C may be attached toth'e blanks when they leave the factory, andthegenvelops so complete ready for sealing,as in Fig. 7.

Having thus described I claim'and ent is- 1. An envelop having overlapping flap 'members, and, a fastening device for said aps comprisingtwo members normally deltached from the envelop, one of said members arranged on one side of the overlapped ,flaps and=theother of said members arranged on" the opposite side of the overlapped flaps, and said overlapping members having means for engaging each other and the interposed envelop material, one of said members adapted to press the said materialinto the opening of the other member 2. An envelop having overlapping flap In testimony whereof I have hereunto set members, and a sealing device eomprismg my hand 1n presence or two subseriblng wittWO complementary lnterloekmg boxes, and nesses.

said flap members having projecting tongues ERNEST KOHLER.

.3 engageable between said boxes and adapted Witnesses:

to be pressed into the opening of one of said CARL PHILIPPI, boxes by the other box to seal the envelop. J. GUY. 

